Wikipedia (although news is not their primary service) operates on a donations business model, relying on user donations to pay the bills. Recently Wikipedia have introduced a very large banner at the top of the page throughout their website, urging users to donate to keep the site ad-free.
Personally, I feel that if they need to produce huge banners to push users to donate, is it really any more beneficial than implementing ads on the site? These ads might discourage some from viewing the website due to their intrusive nature; but there are few adverts that would be more intrusive than the huge banner Wikipedia have temporary installed to encourage donations!
